Copying and Pasting cs Code

In cs, like in almost any computer programming language, reading data from a file can be tricky. You add extra lines of code to tell the computer what to do. Sometimes you can copy and paste these lines from other peoples’ code.

For example, you can follow the pattern in this listing:

   private void Update ()
   {
    //If it's not the player's turn, exit the function.
    if(!GameManager.instance.playersTurn) return;

    int horizontal = 0; //Used to store the horizontal move direction.
    int vertical = 0; //Used to store the vertical move direction.

    //Check if we are running either in the Unity editor or in a standalone build.
#if UNITY_STANDALONE || UNITY_WEBPLAYER

    //Get input from the input manager, round it to an integer and store in horizontal to set x axis move direction
    horizontal = (int) (Input.GetAxisRaw ("Horizontal"));

    //Get input from the input manager, round it to an integer and store in vertical to set y axis move direction
    vertical = (int) (Input.GetAxisRaw ("Vertical"));

    //Check if moving horizontally, if so set vertical to zero.
    if(horizontal != 0)
    {
     vertical = 0;
    }
    //Check if we are running on iOS, Android, Windows Phone 8 or Unity iPhone
#elif UNITY_IOS || UNITY_ANDROID || UNITY_WP8 || UNITY_IPHONE

    //Check if Input has registered more than zero touches
    if (Input.touchCount > 0)
    {
     //Store the first touch detected.
     Touch myTouch = Input.touches[0];

     //Check if the phase of that touch equals Began
     if (myTouch.phase == TouchPhase.Began)
     {
      //If so, set touchOrigin to the position of that touch
      touchOrigin = myTouch.position;
     }

     //If the touch phase is not Began, and instead is equal to Ended and the x of touchOrigin is greater or equal to zero:
     else if (myTouch.phase == TouchPhase.Ended && touchOrigin.x >= 0)
     {
      //Set touchEnd to equal the position of this touch
      Vector2 touchEnd = myTouch.position;

      //Calculate the difference between the beginning and end of the touch on the x axis.
      float x = touchEnd.x - touchOrigin.x;

      //Calculate the difference between the beginning and end of the touch on the y axis.
      float y = touchEnd.y - touchOrigin.y;

      //Set touchOrigin.x to -1 so that our else if statement will evaluate false and not repeat immediately.
      touchOrigin.x = -1;

      //Check if the difference along the x axis is greater than the difference along the y axis.
      if (Mathf.Abs(x) > Mathf.Abs(y))
       //If x is greater than zero, set horizontal to 1, otherwise set it to -1
       horizontal = x > 0 ? 1 : -1;
      else
       //If y is greater than zero, set horizontal to 1, otherwise set it to -1
       vertical = y > 0 ? 1 : -1;
     }
    }

#endif //End of mobile platform dependendent compilation section started above with #elif
    //Check if we have a non-zero value for horizontal or vertical
    if(horizontal != 0 || vertical != 0)
    {
     //Call AttemptMove passing in the generic parameter Wall, since that is what Player may interact with if they encounter one (by attacking it)
     //Pass in horizontal and vertical as parameters to specify the direction to move Player in.
     AttemptMove (horizontal, vertical);
    }
   }